Sofa-bed.



R. DEIMEL.

SOFA BED.

APPLICATION FILED MAY 20, 1908.

Pawnted J an. 25, 1910.

SHEETS- SHEET 1.

7 [721/672 (or: M

R. DEIMEL.

SOFA BED.

APPLICATION FILED MAY 20, 1902.

Patented Jan.25, 1910.

2 SHEETS-SHEET 2.

fawn/0r.-

RUDOLPH DEIlVfEL, OF CHICAGO, ILLINOIS SOFA-BED.

Specifieationof Letters Fatent.

Application filed May 20, 1908. Serial No. 433,863. K

To all whom it may concern:

Be it known that I, RUDOLPH DEIMEL,a citizen of the United States ofAmerica, and a resident of Chicago, Cook county, State of Illinois, haveinvented certain new and useful Improvements in Sofa-Beds, of which thefollowing is a specification.

The main objects of this inventionare to provide certain improvements tothe type of sofa bed shown in the copending application of Theodore G.WVeyer, filed F ebruary 3, 1908, Serial No. 414,051, whereby moreconvenient access to the bedding box may be had and whereby the seatsection may be pivoted at a lower point so as to occupy a lower positionwhen in its position for use as a bed; and to provide an improved formof trunnion and bearing therefor particularly adapted for use in devicesof this class, where at times the trunnions are lifted transversely outof their bearings. These objects are accomplished by the device shown inthe accompanying drawings, in which-- Figure l is a side elevation of asofa bed embodying this invention, the nearer upright being removed toillustrate the method of mounting the sofa sections and the con nectionbetween them. Fig. 2 is a front elevation of the sofa bed partly brokenaway, the line 11 indicating the plane from which the parts are viewedin Fig. 1. Fig. 3 is a view corresponding to Fig. 1, but showing theparts in their position for use as a bed. Fig. 4 is a view correspondingto Fig. 1, but showing the seat section lifted to permit of access tothe bedding box below. Fig. 5 is a detail of the trunnion bearing at thefront end of the seat section. Fig. 6 is a section on the line 66 ofFig. 5. Fig. 7 is a detail of the trunnion bearing at the rearward edgeof the seat section. Fig. 8 is a section on the line 8-8 of Fig. 7.

In the construction shown, the support ing frame comprises a pair ofupright end members 1 and a horizontally disposed bedding box 2extending between them at their lower part. The bedding box 2 preferablyhas end walls or partitions 3 near and adjacent to each of the uprightmembers 1 to prevent the contents of the bedding box from coming intocontact with the springs 4, whose function will be hereinafterdescribed.

. The back section 5 and the seat section 6 Patented Jan. 25', 1910. 4

are each (provided with-the usual upholstered 2 surface not shown),which is outward when sa1d se'ctlons are 1n the sofa position, asinFlgs. 1, 2 and 4, and said sections are provided with mattresses 7 ontheir reverse faces, which are upward when the device is c nions areseated in bearings 9 which are preferably in the form of Ys openingupwith an enlarged inner recess for receiving the head of the trunnlon8. The seat section 6, when in its normal position, is supported by twopairs of trunnions 10 and 11 located respectively near the front andrearward edges of said seat section. Each of the trunnions 10 and 11 isalso seated in a Y bearing, so that it may be lifted from its bearing topermit the seat section to turn upon theother pair of trunnions. Thetrunnions 11 and their bearings are similar in construction to thetrunnions 8 and the bearings 9. trunnions 10 and their bearings 12 isillustrated in Figs. 5 and 6. I

The pads 13 which carry the trunnions 10 are provided with annular lipsor flanges 14 concentric with the trunnions 10. Similarly, the bearings12 are provided with annular lipsor flanges 15 which loosely fit withinflanges .14. Said flanges 14 and 15 are so disposed with respect to eachother that the trunnions may be lifted from their bearings when the seatsection is in its normal-position, so as to permit of access to thebeddin box as in Fig. 4, but said flanges are adaptedtoengage each otherand prevent the possibility of accidental disengagement of the trunnions10 from their bearings when the, seat section 6 is in its forwardlyextended position.

The front-wall of the bedding box 2 is provided with a hinged flap 16 atits upper edge, which is normally urged to an upright position by itsspring hinges 17 (Fig. A

The detailed construction of the ward, as illustrated in Fig. 7, andprovided is swung to its forwardly extended position,

as in Fig. 3. This arrangement permits of mounting the trunnions 10 at alower point on the seatsection, since the seat section doesnot have toclear the upper edge of the bedding box when in its extended position.

In order to swing the back section to its lowered position through themovement of the seat section, the two are connected together by links18, one at each end of the sofa. These are pivotally connected to theseat and back sections and are located within the space between the sofasections and the end members I. Said links are also preferably so formedas to lie entirely within the sofa space, so as to be hidden as much aspossible by the upholstery. In the form shown, the links are connectedto the trunnions 11 of the seat section and to suitably located pivotson the back section. In order to counterbalance the weight of the backsection so that it will offer a minimum of resistance to the operationof converting the device from a sofa to a bed, and vice versa, thesprings 1 are provided, whose function is apparent from the drawings.

The operation of the device shown is as follows:To remove the clothesfrom the bedding box, the seat section 6 is lifted by means of the strap19, as in Fig. 1. It is then lowered to its normal position and mayafterward be swung forward to its extended position by means of thestrap 20 at the rearward edge. As the links 18 are connected to thefulcrums 11, the back section is not affected by lifting the front edgeof the seat section by means of the strap 19. When the seat section isswung forward by means of the strap 20, the back section is caused toswing on its trunnions 8, first slightly backward and then forward toits horizontally disposed position, as in Fig. 3.

Folding legs 21, which may be of any usual construction, support thefront edge of the seat section 6 when in its forward position. Theflanges 14 and 15 prevent any possibility of the trunnions of the seatsection being accidentally lifted from their bearings when said sectionis in its extended position. When the parts are in the bed position, asin Fig. 3, the springs 4 are extended and tend to return the backsection 5 to its vertical position. These springs, however, are adjustedso as to be slightly overbalanced by the weight of the back section 5when in its lowered position. As soon as the operator lifts the seatsection to swing it back to its normal or sofa position, the springs 4,assisted by the thrust on the links 18, return the back section 5 to itsvertical position. The swinging front rail permits the trunnions at thefront of the seat section to be placed much lower than would be the casewhere the front rail is not movable. hen the sections are in positionfor use as a bed, the links 18 rest upon a part of the respectivetrunnions 10, and said parts serve as stops for limiting the movement ofsaid links. When in its horizontal position, the front part of the backsection is supported by the links 18.

hat I claim as my invention and desire to secure by Letters Patent is 1.The combination of a supporting frame comprising a bedding box. a seatsection mounted above said bedding box and forming a closure therefor,means supporting the rearward part of said seat section and adapted topermit the front thereof to be tilted upward for the purpose of gettingaccess to said bedding box, and pivotal supporting means near the frontof said seat section adapted to permit said seat section to be swung toan inverted forwardly extended position, said pivotal supporting meanscomprising parts adapted to interlock when said seat section is swungforward and thereby prevent accidental displacement of said seat sectionwhen in its forwardly extended position.

2. The combination of a supporting frame, comprising a bedding box, aseat section mounted above said bedding box and forming a closuretherefor, means supporting the rearward part of said seat section andadapted to permit the front thereof to be tilted upward for the purposeof getting access to said bedding box, and pivotal supporting means nearthe front of said seat section adapted to permit said seat section to beswung to an inverted forwardly extended position, said pivotalsupporting means comprising trunnions and bearings therefor, saidbearings being open at one side to permit the trunnions to pass in andout in a direction transverse to the axis thereof, and said trunnionsand bearings being provided with coacting shoulders adapted to preventthe trunnions from being disengaged from their bearings when said seatsection is out of its normal position.

3. In a sofa bed, the combination of a supporting frame, a back sectionfulcrumed thereon near its lower edge and adapted to be shifted to asubstantially horizontal position, a seat section fulcrumed near itsfront edge and adapted to be swung on its fulcrum to a forwardlyextended position, a link pivotally connected to said back section andto said seat section, whereby the shifting of one of said sections willcause a corresponding shifting of said other section, and a stop on oneof said sections adapted to engage said link when said sections are intheir horizontally extended positions and thereby support the end ofsaid back section which is distant from the fulcrum thereof.

+1. The combination of a frame, a seat section fulcrumed thereon on ahorizontal axis adjacent to its front edge and adapted to be turned to aforwardly extended position, a rail extending along said front edge,being hinged to the frame independently of the hinge connection of saidseat section and adapted to swing inward when engaged by said seatsection, and means for returning said rail to its normal. position whensaid seat section is turned back to its normal position.

5. The combination of a frame, a seat section fulcrumed thereon on ahorizontal axis adjacent to its front edge and adapted to be turned to aforwardly extended position, a rail extending along said front edge,being hinged to the frame independently of the hinge connection of saidseat section and adapted to swing inward when engaged by I said seatsection, and a spring normally urging said rail to lts normal posltlon.

6. A hlnge for sofa beds, comprislng a part provided with a trunnlon, asecond 1 said trunnion adapted to engage each other and prevent theaccidental separation of said trunnion and bearing when said parts arein different relative positions.

Signed at Chicago this 12th day of May, 1908.

RUDOLPH DEIMEL.

Witnesses:

' E. A. RUMMLER,

THEODORE G. VVEYER.

